The cluster is very bright at X-ray wavelengths and is one of the most extensively studied galaxy clusters at X-ray and radio ...

A newly discovered underwater volcanic eruption north of Papua New Guinea is unfolding in one of the world's most poorly mapped ocean basins. Satellites have spotted steam plumes, ash, thermal ...

NASA is seeking volunteers to participate in a yearlong mission simulating future trips to the moon and Mars. Participants ...

"Artemis II's human‑spaceflight narrative, real‑time crew updates, and highly visual moments drew millions of new followers ...

A valuable NASA satellite observatory is falling to Earth faster than scientists expected. It’s called the Neil Gehrels Swift ...

The largest digital camera ever built is beginning to capture images of unseen corners of the universe in finer detail ...

The exoplanet telescope TESS revealed a distant world using an entirely different detection method than the one it was built ...

In new footage from National Geographic’s cameras on board the NASA mission, Reid Wiseman and Jeremy Hansen talk about naming ...

Explore decades of incredible images and videos of stars, planets, moons, and galaxies—most of which are free to use and ...

A Jupiter-size exoplanet orbiting a dead star baffled astronomers. But the planet named WD 1856 b could preview the fate of ...

NASA astronauts Chris Williams and Jessica Meir will fix the International Space Station's Canadarm2 during a spacewalk on ...

National Geographic Explorer Mackenzie Calle spent 14 days in a Mars simulation program to prepare for humanity's future in ...